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The analysis of losses in high-power fault-tolerant machines for aerospace applications

Lookup NU author(s): Dr Glynn Atkinson, Professor Barrie Mecrow, Professor Alan Jack, Dr Dave Atkinson



This paper discusses the design of a fault-tolerant electric motor for an aircraft main engine fuel pump. The motor in question is a four-phase fault-tolerant motor with separated windings and a six-pole permanent magnet rotor. Methods of reducing machine losses in both the rotor and stator are introduced and discussed. The methods used to calculate rotor eddy current losses are examined. Full three-dimensional finite-element (FE) time stepping, two-dimensional (2-D) FE time stepping, and 2-D FE harmonic methods are discussed, and the differences between them and the results they produce were investigated. Conclusions are drawn about the accuracy of the results produced and how the methods in question will help the machine designer. © 2006 IEEE.

Publication metadata

Author(s): Atkinson GJ, Mecrow BC, Jack AG, Atkinson DJ, Sangha P, Benarous M

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Industry Applications

Year: 2006

Volume: 42

Issue: 5

Pages: 1162-1170

Print publication date: 01/09/2006

ISSN (print): 0093-9994

ISSN (electronic): 1939-9367

Publisher: IEEE


DOI: 10.1109/TIA.2006.880869


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